American Samoa · 1991–2020

Best time to visit
Ili‘ili.

August leads for comfortable weather in Ili‘ili: typically 29.3°C by day, 25°C at night, with 176 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high29.3°C

Typical low25°C

Rain in August176 mm

Comfort

August

August · June · July

35climate match

Beach

June

June · August · July

51climate match

Outdoors

June

June · August · January

8climate match

The weakest month is January, scoring 5 against August’s 35 — 397 mm of rain falls.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

531° / 25.7°

Feb

531.2° / 25.7°

Mar

831.3° / 25.6°

Apr

931° / 25.6°

May

1030.2° / 25.5°

Jun

3429.6° / 25.4°

Jul

3229.2° / 25.1°

Aug

3529.3° / 25°

Sep

2929.8° / 25.3°

Oct

1730.2° / 25.4°

Nov

730.6° / 25.6°

Dec

530.9° / 25.7°

Monthly climate evidence for Ili‘ili — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 13 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	31°C	25.7°C	397 mm	21.3	28.9°C	12 h 53	5	Strong coverage
February	31.2°C	25.7°C	347 mm	18.5	29.0°C	12 h 35	5	Strong coverage
March	31.3°C	25.6°C	275 mm	19.8	29.3°C	12 h 13	8	Strong coverage
April	31°C	25.6°C	289 mm	18.2	29.3°C	11 h 48	9	Strong coverage
May	30.2°C	25.5°C	302 mm	17.4	28.9°C	11 h 27	10	Strong coverage
June	29.6°C	25.4°C	164 mm	14.4	28.4°C	11 h 17	34	Strong coverage
July	29.2°C	25.1°C	186 mm	15.6	27.9°C	11 h 21	32	Strong coverage
August	29.3°C	25°C	176 mm	14.4	27.6°C	11 h 38	35	Strong coverage
September	29.8°C	25.3°C	197 mm	14.3	27.8°C	12 h 02	29	Strong coverage
October	30.2°C	25.4°C	261 mm	17.2	28.1°C	12 h 27	17	Strong coverage
November	30.6°C	25.6°C	314 mm	18.1	28.5°C	12 h 48	7	Strong coverage
December	30.9°C	25.7°C	374 mm	20.4	28.9°C	12 h 58	5	Strong coverage

What has changed

Ili‘ili runs +0.5°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+0.4

Feb

+0.4

Mar

+0.7

Apr

+0.4

May

+0.5

Jun

+0.4

Jul

+0.5

Aug

+0.7

Sep

+0.6

Oct

+0.8

Nov

+0.7

Dec

+0.5

August daytime highs, 2011–2025. Last recorded: 29.6°C.

Records at PAGO PAGO WSO AP, 1966–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	35.0°C8 Jan 1998	20.6°C17 Jan 1976	263 mm7 Jan 1997	719 mm2010 · driest 113 mm in 2016	60
February	35.6°C27 Feb 1998	21.1°C6 Feb 1974	210 mm3 Feb 1990	831 mm2020 · driest 51 mm in 1998	60
March	35.0°C25 Mar 1998	20.6°C19 Mar 1968	133 mm2 Mar 1981	652 mm1978 · driest 102 mm in 1976	60
April	35.0°C14 Apr 1998	20.0°C22 Apr 1979	259 mm29 Apr 1975	784 mm2016 · driest 19 mm in 1998	60
May	33.9°C4 May 2000	18.9°C26 May 1974	271 mm19 May 2003	740 mm1999 · driest 41 mm in 1983	61
June	35.0°C23 Jun 1988	18.3°C15 Jun 1987	178 mm5 Jun 2013	527 mm2020 · driest 21 mm in 1998	61
July	32.8°C28 Jul 2002	17.8°C27 Jul 1977	155 mm31 Jul 2014	639 mm2025 · driest 18 mm in 1974	61
August	33.3°C17 Aug 2002	17.8°C15 Aug 1979	148 mm10 Aug 1978	461 mm2013 · driest 8 mm in 1989	60
September	33.3°C26 Sep 2000	17.2°C2 Sep 1970	211 mm1 Sep 2012	642 mm1972 · driest 16 mm in 1987	60
October	34.4°C24 Oct 2001	19.4°C11 Oct 1971	191 mm9 Oct 1967	752 mm1996 · driest 53 mm in 1975	60
November	35.0°C18 Nov 1998	20.0°C21 Nov 1971	192 mm5 Nov 2012	652 mm1978 · driest 82 mm in 1998	60
December	34.4°C16 Dec 2001	20.0°C19 Dec 1967	203 mm9 Dec 1991	696 mm2009 · driest 57 mm in 1995	60

Typical days per month at PAGO PAGO WSO AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	31	26	11
February	28	24	8
March	31	28	8
April	30	26	8
May	31	21	8
June	30	13	5
July	31	11	5
August	31	12	5
September	30	17	5
October	31	21	7
November	30	22	8
December	31	26	10

The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 53); on 2011–2025 it is August (46). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in PAGO PAGO WSO AP’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	32%	68%	33%	92%	29.9–31.9°C
February	33%	67%	30%	92%	29.9–31.9°C
March	36%	65%	25%	90%	29.9–32.3°C
April	39%	61%	27%	85%	29.8–31.7°C
May	44%	56%	24%	78%	29.2–30.9°C
June	51%	49%	15%	69%	28.6–30.1°C
July	52%	48%	15%	67%	28.1–29.7°C
August	56%	44%	14%	62%	28.1–29.8°C
September	53%	47%	15%	67%	28.7–30.2°C
October	44%	56%	22%	80%	28.8–30.6°C
November	40%	60%	26%	84%	29.3–31.2°C
December	35%	65%	32%	87%	29.7–31.4°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1967Each stripe is one year’s mean temperature against the 58-year average. Warmest: 1998. Coolest: 1971.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5881287
NOAA station: AQW00061705 · PAGO PAGO WSO AP
Station distance: 4.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude -14.35°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 13 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from PAGO PAGO WSO AP is what differs

Pago Pago→Tāfuna→Nu‘uuli→Leone→Faleniu→Aūa→

Or put two places side by side: Ili‘ili vs Pago Pago

Best time to visitIli‘ili.

August

June

June

The whole year,without the guesswork.

Ili‘ili runs +0.5°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Ili‘ili.

The whole year,
without the guesswork.

Ili‘ili runs +0.5°C
on the 1961–1990 baseline.

Nearby, measured,
and named.